DE3668408D1 - METHOD FOR DECAFFINATING NATURAL SUBSTANCES, IN PARTICULAR RAW COFFEE OR TEA. - Google Patents

METHOD FOR DECAFFINATING NATURAL SUBSTANCES, IN PARTICULAR RAW COFFEE OR TEA.

Info

Publication number
DE3668408D1
DE3668408D1 DE8686114742T DE3668408T DE3668408D1 DE 3668408 D1 DE3668408 D1 DE 3668408D1 DE 8686114742 T DE8686114742 T DE 8686114742T DE 3668408 T DE3668408 T DE 3668408T DE 3668408 D1 DE3668408 D1 DE 3668408D1
Authority
DE
Germany
Prior art keywords
tea
natural substances
raw coffee
decaffinating
particular raw
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE8686114742T
Other languages
German (de)
Inventor
Gerd Prof Dr Ing Brunner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KOFFEINFREI KAFFEE GmbH
Original Assignee
KOFFEINFREI KAFFEE GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KOFFEINFREI KAFFEE GmbH filed Critical KOFFEINFREI KAFFEE GmbH
Application granted granted Critical
Publication of DE3668408D1 publication Critical patent/DE3668408D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
    • A23F5/00—Coffee; Coffee substitutes; Preparations thereof
    • A23F5/20—Reducing or removing alkaloid content; Preparations produced thereby; Extracts or infusions thereof
    • A23F5/206—Reducing or removing alkaloid content; Preparations produced thereby; Extracts or infusions thereof by extraction of the beans with selective solvents other than water or aqueous bean extracts, including supercritical gases
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
    • A23F3/00—Tea; Tea substitutes; Preparations thereof
    • A23F3/36—Reducing or removing alkaloid content; Preparations produced thereby; Extracts or infusions thereof
    • A23F3/366—Reducing or removing alkaloid content; Preparations produced thereby; Extracts or infusions thereof by extraction of the leaves with selective solvents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/02—Solvent extraction of solids
    • B01D11/0203—Solvent extraction of solids with a supercritical fluid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Tea And Coffee (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1. Process for the decaffeination of natural substances, particularly raw coffee or tea by treating the same with a circulating gaseous solvent, in particular CO2 and/or N2 O, in a supercritical state at a pressure in the range 150 to 350 bar and a temperature in the range 40 to 100 degrees C and separation of the caffeine from the charged gas by reducing the temperature and/or pressure, characterized in that initially a high weight ratio of solvent to natural substance in used and this is reduced a least approximately by the factor of 5 to 10 as the extraction time advances.
DE8686114742T 1986-10-23 1986-10-23 METHOD FOR DECAFFINATING NATURAL SUBSTANCES, IN PARTICULAR RAW COFFEE OR TEA. Expired - Fee Related DE3668408D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP86114742A EP0264484B1 (en) 1986-10-23 1986-10-23 Process for decaffeinating natural products, particularly green coffee or tea

Publications (1)

Publication Number Publication Date
DE3668408D1 true DE3668408D1 (en) 1990-03-01

Family

ID=8195528

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686114742T Expired - Fee Related DE3668408D1 (en) 1986-10-23 1986-10-23 METHOD FOR DECAFFINATING NATURAL SUBSTANCES, IN PARTICULAR RAW COFFEE OR TEA.

Country Status (3)

Country Link
EP (1) EP0264484B1 (en)
AT (1) ATE49697T1 (en)
DE (1) DE3668408D1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2404647B1 (en) * 2010-07-08 2013-03-27 Dartes Krup, S.L. Method for extracting organic compounds from granulated cork

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2119678C3 (en) * 1971-04-22 1975-10-30 Studiengesellschaft Kohle Mbh, 4330 Muelheim Process for the production of decaffeinated coffee extract
DE2127642C3 (en) * 1971-06-03 1975-10-16 Studiengesellschaft Kohle Mbh, 4330 Muelheim Process for making caffeine-free, full-flavored black tea
DE3445502A1 (en) * 1983-12-13 1985-06-20 Cafe Toro Ltda., Bogota Process and device for decaffeinating green coffee

Also Published As

Publication number Publication date
EP0264484A1 (en) 1988-04-27
ATE49697T1 (en) 1990-02-15
EP0264484B1 (en) 1990-01-24

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee